Structural Dynamics

Structural Dynamics

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  3. How can I limit modal results to specific frequencies for large models?

How can I limit modal results to specific frequencies for large models?

Tagged: 19.2, mechanical, Modal/Harmonic Response, structural-dynamics, structural-mechanics
    • May 15, 2023 at 8:32 am
      SolutionSolution
      Participant

      First of all, you need to define an array that contains 1 for the expanded modes and 0 otherwise, where the array index corresponds to the mode number. Then you may issue “mxpand, %arrname% and this should reduce results file quite a lot. Lastly, I recommend that you carefully review downstream harmonic/random vibration results as fewer modes will be used to do MSUP. I’ve created an example for your reference and let me know if you have any questions.

      Attachments:
      1. 2056431.zip

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